Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	ASUS TUF GAMING B450M-PLUS II	Asustek computer PRIME B450M-K II ATX +2GLN+U3.2+M2 SATA6+4XDDR9	MACHINIST B450 AM4-K Motherboard for AMD Ryzen 1-5th gen Processors
Price (new) (differs)	£144.77as of 18 Oct, 06:21	£87.19as of 18 Oct, 06:21	£79.16as of 18 Oct, 06:23
Amazon Warehouse offer	not stated	not stated	not stated
RRP (differs)	not stated	£72.99	not stated
Price badge (differs)	30-day low	30-day low	90-day low
First available on Amazon (differs)	Jan 2022 (4 yr 9 mo old)	Nov 2020 (5 yr 11 mo old)	Aug 2025 (1 yr 1 mo old)
Brand (differs)	ASUS	ASUS	Machinist
Socket	AM4	AM4	AM4
Chipset	B450	B450	B450
Form factor	Micro-ATX	Micro-ATX	Micro-ATX
Memory type	DDR4	DDR4	DDR4
RAM slots (differs)	4	not stated	2
Maximum RAM (differs)	not stated	not stated	128 GB
Fastest RAM speed stated (differs)	not stated	not stated	3,600 MT/s
M.2 slots (differs)	not stated	not stated	2
Newest PCIe generation stated (differs)	not stated	not stated	PCIe 3.0
PCIe 5.0 graphics slot	not stated	not stated	not stated
PCIe 5.0 M.2 slot	not stated	not stated	not stated
WiFi	None named in the listing title	None named in the listing title	None named in the listing title
Bluetooth	not stated	not stated	not stated
Wired LAN (differs)	not stated	1GbE	1GbE
USB4 / Thunderbolt	not stated	not stated	not stated
Fastest USB-C port	not stated	not stated	not stated
SATA ports (differs)	not stated	not stated	1
Power phases (as stated by the maker)	not stated	not stated	not stated
BIOS flashback	not stated	not stated	not stated
Debug LED / POST code	not stated	not stated	not stated
ARGB headers (differs)	Yes	not stated	not stated
Video outputs (differs)	HDMI	not stated	HDMI, DisplayPort
Audio codec	not stated	not stated	not stated
Colour	not stated	not stated	not stated
Amazon sales rank (differs)	#115,170	#1,549	#306,892
Buy	Check price on Amazon	Check price on Amazon	Check price on Amazon

Highlighted rows differ between these boards. “Not stated” means the Amazon listing does not mention it: the board may still have it, so check the maker’s specification. Power phases are printed as stated by the maker and are not comparable between brands. Prices are the new price on Amazon.co.uk at the time shown; the price on Amazon when you buy is the one that applies.

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